package com.guw.TestThread;

//多线程同时操作同一个对象
//买火车票的例子
//发现一个问题,多个线程操作同一个资源时,线程不安全,数据紊乱
public class Test04 implements Runnable {
    //票数
    private int ticketNum = 100;

    @Override
    public void run() {
        while (true) {
            if (ticketNum <= 0) {
                break;
            }
            //模拟延时
            try {
                Thread.sleep(200);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println(Thread.currentThread().getName() + "---拿到了第" + ticketNum-- + "张票");
        }
    }

    public static void main(String[] args) {
        Test04 ticket = new Test04();

        new Thread(ticket).start();
        new Thread(ticket).start();
        new Thread(ticket).start();
    }
}
